Question

la un magazin sunt banane portocale si mandarine in total sunt 1200 kg 35 la suta banane si 25 la suta mandarine aflati nr din fiecare fruct

Answer 1

b+p+m=1200kg;
⇒b=35/100·1200=35·1200/100=35·12=420kg[de banane];
⇒m=25/100·1200=25·1200/100=25·12=300kg[de mandarine];
⇒420kg+p+300kg=1200kg
⇒720kg+p=1200kg
⇒p=520kg[de portocale];